how to generate three independent sinusoidal signal in matlab?
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Guys,
does anyone know how to generate three independent signal in MatLab. If it's sinusoidal, would be great.
Thanks,
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Accepted Answer
Youssef Khmou
on 26 Sep 2014
Edited: Youssef Khmou
on 26 Sep 2014
sin waves with different frequencies :
Fs=20;
f1=2;
f2=4;
f3=9;
t=0:1/Fs:10-1/Fs;
y1=sin(2*pi*f1*t);
y2=sin(2*pi*f2*t);
y3=sin(2*pi*f3*t);
6 Comments
Rick Rosson
on 26 Sep 2014
Edited: Rick Rosson
on 26 Sep 2014
One possibility is to ensure that all three signals are mutually orthogonal. For pure tone sine waves, a sufficient condition for orthogonality is to set the three frequencies such that all are integer multiples of a common fundamental:
f0 = 5;
f1 = 1*f0;
f2 = 2*f0;
f3 = 3*f0;
or better:
f0 = 5;
f = f0*(1:3);
Youssef Khmou
on 26 Sep 2014
Edited: Youssef Khmou
on 26 Sep 2014
Correct. You can calculate theirs scalar product, example :
dot(y1,y2)
dot(y2,y2)
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